wallin



ATTORNEY Nov. 17, 1936. G. A. lwA| |N TACK Filed oct. s, 1954 IN 'TOR Patented Nov. 17, 1936 UNITED STATES 'rack Gusta! A. Wa Flushing, N. Y., assigner to A.

Kimball Company, New York, N. Y., a corporation of New York Application October 3, 1934, Serial No. 746,628

1 Claim.

This invention relates to tacks, and. pertains particularly to the type of tack having a large head and short prong, commonly referred to as thumb tacks.

It is an object of the invention to provide a tack having a head with an adhesive surface, so that articles may be secured thereto for display or other purposes.

Other objects and advantages of the invention will appear hereinafter.

A preferred embodiment of the invention selected for purposes of illustration is shown in the accompanying drawing, in which,

Figure 1 is an enlarged perspective view of the tack,

Figures 2 and 3 are vertical cross sections taken at right angles through the tack, and

Figure 4 is a plan view illustrating the manner of making the tacks from a strip of material.

Referring to the drawing, the head of the tack comprises two sheets of pliable material such as paper l and 2, between which is secured a metal member 3 which serves as a reinforcement for the head of the tack and also as the material from which the prong 4 is formed.

Preferably the sheet l is formed of relatively heavy kraft paper stock and is provided on its exposed face with a coating 5 of adhesive such as glue for a purpose hereinafter described.

The sheet 2 may be of somewhat lighter paper stock in order that it may bend readily toconform to the shape of the metal member 3, it being desirable that the sheet l be substantially at in order to provide a substantially flat adhesive surface.

The metal member 3 preferably has an area less than that of the sheets I and l2 in order to provide marginal areas such as 6 where the paper sheet I may be secured directly to the paper sheet 2 so as to bind the two together and to hold the metal member 3 securely therebetween.

The paper sheets and the metal member are adhesively secured together, using` preferably a glue which adheres not only to the paper but also tothe metal member.

',I'he metal member may be of any desired shape, but is preferably in the form of a strip extending from one edge of the head to the opposite edge. When made in this form the paper and metal strips can be conveniently assembled 5 and glued together in strip form as indicated in Figure 4, after which the prongs 4 may be struck up and the individual tacks severed in any suitable manner. The outline of the individual tacks is shown in dotted lines. The head of the tack 1o may be made in any desired shape, as circular, square or hexagonal for example.

It will be observed that the paper which is directly securedl together at the marginal edges 6 forms, in effect, a sleeve or pocket for the metal l5 member, and that the prong 4 which protrudes through the sheet 2 holds the metal member in place even though the adhesive between the metal and paper may become loosened.

Tacks of this type have been found to be par- 20 ticularly useful for display purposes, where it is desired to exhibit an article without damaging it, as by pushing a pin or other fastening device through the article. I have illustrated the manner of using the tack in Figure 2 in which 25 the article 'l to be displayed is secured to the head of the tack by means of the adhesive surface 5. The prong of the tack is then pushed into a wall 8 or any other suitable surface, so that the article is held in the desired position.

It will be understood that the invention may be variously modified and embodied within the scope of the subjoined claims.

I claim as my invention:

'A composite thumb tack adapted to be manu- 35 'factured by a continuous process from continuous strips of metal and paper comprising a strip of metal interposed between two strips of paper of greater area than said metal strip, said strips being adhesively secured together, said metal 40 strip having a prong integral therewith and struck out from said metal strip, said metal strip extending across the tack from one edge of the paper strips to an opposite edge.

' GUSTAF A. WALLIN. 

